CN107956221B - Precipitation well pipeline protection device and construction method - Google Patents
Precipitation well pipeline protection device and construction method Download PDFInfo
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- CN107956221B CN107956221B CN201711316192.7A CN201711316192A CN107956221B CN 107956221 B CN107956221 B CN 107956221B CN 201711316192 A CN201711316192 A CN 201711316192A CN 107956221 B CN107956221 B CN 107956221B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
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- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to a precipitation well pipeline protection device and a construction method, which are used for protecting a rubber drain pipe, wherein the device comprises a water pump, a PVC pipe, a concrete supporting block, a corrugated pipe and a steel wire mesh; the water suction pump is buried in the precipitation well, the lower end of the rubber drainage pipe is connected with the water suction pump, and the upper end of the rubber drainage pipe extends out of the ground; the PVC pipe is sleeved outside the rubber drain pipe, the lower end of the PVC pipe extends into the soil layer of the dewatering well, the upper end of the PVC pipe extends out of the ground, a plurality of spaced cutting seams are arranged on the part of the PVC pipe above the basement bottom plate, and the corrugated pipe is sleeved outside the PVC pipe. The double-layer pipeline protection device is adopted, so that the peripheral soil can be better resisted, the pressure resistance is strong, the overall strength is higher, the stability is stronger, and the service life is longer. PVC pipe and bellows all have the infiltration effect, do not only confine the effect of precipitation to groundwater below the basement bottom plate to, also have the effect of precipitation to basement backfill soil, and the effect of precipitation is more obvious, and is fast.
Description
Technical Field
The invention relates to basement dewatering construction, in particular to a dewatering well pipeline protection device and a construction method.
Background
Drainage pipes adopted by existing basement dewatering wells are generally rubber pipes and plastic pipes, and when earth backfilling is conducted on a basement in the later stage, a PVC plastic pipe is usually sleeved outside the drainage pipe to achieve the effects of protection and fixation, extends to the ground from a basement bottom plate, is supported and fixed, and then the earth backfilling is conducted. But under the action of earth pressure, the plastic pipe is easy to deform or be damaged, and the service life of the dewatering well pipeline is short; meanwhile, the damaged pipeline easily causes the muck to fall into the pipeline, and the effect of protecting the drain pipe cannot be achieved; under the upwelling effect of underground water, the existing precipitation pipeline cannot play the roles of water filtration and precipitation in backfill soil.
Disclosure of Invention
The invention aims to provide a precipitation well pipeline protection device and a construction method, wherein the precipitation well pipeline protection device is higher in overall strength, higher in stability and longer in service life.
The technical scheme adopted by the invention for solving the technical problems is as follows: a precipitation well pipeline protection device is constructed and used for protecting a rubber drainage pipe and comprises a water suction pump, a PVC pipe, a concrete supporting block, a corrugated pipe and a steel wire mesh;
the water suction pump is buried in the precipitation well, the lower end of the rubber drainage pipe is connected with the water suction pump, and the upper end of the rubber drainage pipe extends out of the ground; the PVC pipe box is in the rubber drain pipe outside, and PVC manages the lower extreme and stretches into in the precipitation well soil horizon, and the upper end stretches out to more than the ground, and the part that the PVC managed more than the basement bottom plate is equipped with a plurality of spaced joint-cuts, the bellows cover is established the PVC manages the outside, the concrete supporting shoe is used for supporting the bellows, and the concrete supporting shoe is located the basement bottom plate to be located between bellows and the PVC pipe, be equipped with the concatenation seam on the bellows, the outer parcel wire net of bellows.
In the scheme, the cutting seams are arranged in a quincunx shape.
In the scheme, the length of the cutting seam is 150mm, and the distance is 20 mm.
In the scheme, the splicing part of the corrugated pipe is bound by steel wires.
The invention also provides a construction method for protecting the dewatering well pipeline, which comprises the following steps:
(1) when the concrete bottom plate is poured, a concrete supporting block is manufactured around the dewatering well through template forming;
(2) connecting a PVC pipe from a basement bottom plate to an extended section of PVC pipe, wherein the PVC pipe at the upper part is provided with cutting seams arranged at intervals and used for enabling water permeating into the PVC pipe to flow into a precipitation well;
(3) sleeving a layer of corrugated pipe outside the PVC pipe, wherein the corrugated pipe is arranged outside the concrete supporting block, water in the backfill soil can flow out of the PVC pipe through the abutted seams of the corrugated pipe, then seeps into the dewatering well through the cutting seam of the PVC pipe, and finally is pumped out through a water pump;
(4) wrapping a layer of steel wire mesh outside the corrugated pipe;
(5) and (4) backfilling the basement, and then installing the PVC pipe and the corrugated pipe after backfilling is finished, and installing and backfilling the whole layer by layer until the basement reaches the ground.
In the scheme, the cutting seams are arranged in a quincunx shape.
In the scheme, the length of the cutting seam is 150mm, and the distance is 20 mm.
In the scheme, the splicing part of the corrugated pipe is bound by steel wires.
The dewatering well pipeline protection device and the construction method have the following beneficial effects:
(1) by adopting the double-layer pipeline protection device, the peripheral soil can be better resisted, the pressure resistance is strong, the overall strength is higher, the stability is stronger, and the service life is longer;
(2) the PVC pipe and the corrugated pipe have water seepage effects, the effect of lowering the water level of underground water is not limited to the position below the bottom plate of the basement, the effect of lowering the water level of backfill soil of the basement is also achieved, the water lowering effect is more obvious, and the speed is higher;
(3) the construction process is simple, the construction difficulty is small, the layered construction is realized, and the requirements on manpower and material resources are low;
(4) the materials required by construction are easy to obtain, the cost of the required materials is low, and the manufacturing cost is low;
(5) the applicability is strong, the protection effect on the deep foundation dewatering pipeline is obvious, and the method is also suitable for the protection of foundation dewatering pipelines with various depths.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic structural diagram of a dewatering well pipeline protection device of the present invention;
FIG. 2 is a schematic view of a splice seam of a corrugated pipe.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the dewatering well pipeline protection device comprises a water pump 1, a PVC pipe 3, a concrete support block 4, a corrugated pipe 5 and a steel wire mesh 6, in order to effectively protect a built-in rubber drainage pipe 2 and filter and dewater backfilled soil.
The water suction pump 1 is connected with the rubber drain pipe 2, provides power for water suction and precipitation and is buried under a soil layer 8 of the basement bottom plate. The hollow drain pipe with two open ends of the rubber drain pipe 2 extends into the precipitation well from the lower end and is connected with the water pump 1, the ground is led out from the upper end, and the pumped underground water is led to the ground.
The diameter of the PVC pipe 3 is 315mm, the PVC pipe is a hollow pipeline with openings at two ends, the lower end of the PVC pipe extends into a precipitation well soil layer 8, the upper end of the PVC pipe extends out of the ground, the rubber drain pipe 2 is sleeved in the PVC pipe, a part above the basement bottom plate 9 is provided with a cutting seam with the length of 150mm and the distance of 20mm, and the cutting seam is arranged in a quincunx shape.
The concrete supporting block 4 is constructed on the basement bottom plate 9, is arranged outside the PVC pipe 3, and the diameter of the concrete supporting block is slightly smaller than 600mm, and is used for supporting the corrugated pipe 5.
The diameter of the corrugated pipe 5 is 600mm, the corrugated pipe is a hollow pipeline with openings at two ends, the lower end of the corrugated pipe is sleeved in the concrete supporting block 4, the upper end of the corrugated pipe extends to the ground, the corrugated pipe 5 is formed by splicing a plurality of short pipes, splicing seams are bound and connected by steel wires 7, and water can seep at the splicing seams.
The steel wire mesh 6 wraps the 600mm corrugated pipe 5 and is used for preventing soil and crushed stone from extruding the corrugated pipe 5 and falling into the corrugated pipe 5.
The construction method for protecting the dewatering well pipeline comprises the following construction steps:
(1) when the concrete bottom plate 9 is poured, the concrete support block 4 with the outer diameter of 600mm and the thickness of 100mm is manufactured around the dewatering well through template forming and is used for supporting the corrugated pipe 5;
(2) connecting a 315mm PVC pipe 3 from a basement bottom plate 9 to an extended section of PVC pipe 3, wherein the newly connected pipe is provided with a cutting seam which is arranged in a quincunx shape, is 150mm long and is 20mm apart, and is used for leading the water which permeates in to flow into a precipitation well;
(3) then, a 600mm corrugated pipe 5 is sleeved outside the PVC pipe 3 and is connected to the outside of the concrete supporting block 4 to protect and support the PVC pipe 3, meanwhile, the splicing part of the corrugated pipe 5 is bound by a steel wire 7, so that the stability and firmness of the structure are improved, water in the backfill soil can flow into the outside of the PVC pipe 3 through the splicing seam, then seep into the dewatering well through the cutting seam of the PVC pipe 3, and finally is pumped out through the water pump 1 and the drainage pipe system;
(4) the corrugated pipe 5 is wrapped with a layer of steel wire mesh 6 for protecting the corrugated pipe 5, playing a role in stabilizing and supporting, simultaneously preventing extrusion, filtering sand and soil and prolonging the service life of the corrugated pipe 5;
(5) after the pipeline protection installation of the precipitation well is finished, backfilling the basement, wherein the backfilling height does not exceed the pipeline installation height of the precipitation well, and after the backfilling is finished, installing a precipitation pipeline protection device, and integrally installing and backfilling the precipitation pipeline protection device until the precipitation pipeline protection device reaches the ground;
(6) after the completion, can guarantee that basement precipitation normal work, also can filter the infiltration of backfill soil to also pump water and discharge underground.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A precipitation well pipeline protection device is used for protecting a rubber drainage pipe and is characterized by comprising a water pump, a PVC pipe, a concrete supporting block, a corrugated pipe and a steel wire mesh;
the water suction pump is buried in the precipitation well, the lower end of the rubber drainage pipe is connected with the water suction pump, and the upper end of the rubber drainage pipe extends out of the ground; the PVC pipe box is in the rubber drain pipe outside, and PVC manages the lower extreme and stretches into in the precipitation well soil horizon, and the upper end stretches out to more than the ground, and the part that the PVC managed more than the basement bottom plate is equipped with a plurality of spaced joint-cuts, the bellows cover is established the PVC manages the outside, the concrete supporting shoe is used for supporting the bellows, and the concrete supporting shoe is located the basement bottom plate to be located between bellows and the PVC pipe, be equipped with the concatenation seam on the bellows, the outer parcel wire net of bellows.
2. The precipitation well pipeline protection device as claimed in claim 1, wherein the slits are arranged in a quincunx shape.
3. The precipitation well pipeline protection device as claimed in claim 1, wherein the length of the cutting slits is 150mm, and the distance between the cutting slits is 20 mm.
4. The precipitation well pipeline protection device of claim 1, wherein the splicing position of the corrugated pipe is bound by steel wires.
5. A construction method for protecting a dewatering well pipeline is characterized by comprising the following steps:
(1) when the concrete bottom plate is poured, a concrete supporting block is manufactured around the dewatering well through template forming;
(2) connecting a PVC pipe from a basement bottom plate to an extended section of PVC pipe, wherein the PVC pipe at the upper part is provided with cutting seams arranged at intervals and used for enabling water permeating into the PVC pipe to flow into a precipitation well; the lower end of the PVC pipe extends into the soil layer of the dewatering well;
(3) sleeving a layer of corrugated pipe outside the PVC pipe, wherein the corrugated pipe is arranged outside the concrete supporting block, and the concrete supporting block is positioned on the basement floor and between the corrugated pipe and the PVC pipe; water in the backfill soil can flow out of the PVC pipe through the abutted seams of the corrugated pipe, then seeps into the dewatering well through the cutting seams of the PVC pipe, and finally is pumped out through the water pump;
(4) wrapping a layer of steel wire mesh outside the corrugated pipe;
(5) and (4) backfilling the basement, and then installing the PVC pipe and the corrugated pipe after backfilling is finished, and installing and backfilling the whole layer by layer until the basement reaches the ground.
6. The construction method for protecting precipitation well pipeline as claimed in claim 5, wherein the cutting slits are arranged in a quincunx shape.
7. The construction method for protecting precipitation well pipeline as claimed in claim 5, wherein the length of the cutting seam is 150mm, and the distance between the cutting seams is 20 mm.
8. The construction method for protecting precipitation well pipeline as claimed in claim 5, wherein the splicing position of the corrugated pipe is bound by steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711316192.7A CN107956221B (en) | 2017-12-12 | 2017-12-12 | Precipitation well pipeline protection device and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711316192.7A CN107956221B (en) | 2017-12-12 | 2017-12-12 | Precipitation well pipeline protection device and construction method |
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| CN107956221A CN107956221A (en) | 2018-04-24 |
| CN107956221B true CN107956221B (en) | 2020-10-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110552342A (en) * | 2018-06-04 | 2019-12-10 | 中冶天工集团有限公司 | method for discharging excess water after watertight construction by self-supporting medium-coarse sand drainer |
| CN108755724A (en) * | 2018-06-15 | 2018-11-06 | 上海二十冶建设有限公司 | The external water drainage waterproof method of pipe gallery |
| CN111119931B (en) * | 2020-03-03 | 2022-01-25 | 中国五冶集团有限公司 | Deformation control construction method for shallow-buried and underground-excavated foundation of pebble stratum power tunnel |
| CN115262602B (en) * | 2022-07-22 | 2023-08-15 | 中建一局集团第五建筑有限公司 | Sand foundation corrugated pipe dewatering well and dewatering method thereof |
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| JP5212070B2 (en) * | 2008-12-12 | 2013-06-19 | 株式会社大林組 | Common well and construction method of regular well |
| JP5178635B2 (en) * | 2009-06-04 | 2013-04-10 | 株式会社泉ポンプ製作所 | Groundwater level lowering device |
| CN203174616U (en) * | 2013-04-02 | 2013-09-04 | 中建城市建设发展有限公司 | Clay foundation rain falling and water saving system |
| CN103334444B (en) * | 2013-07-09 | 2016-04-20 | 中国一冶集团有限公司 | A kind of method for blocking of foundation pit dewatering well pressure release type |
| CN104420484B (en) * | 2013-08-22 | 2016-09-28 | 中国二十冶集团有限公司 | The artesian well guard method of deep basal pit soil property stabilization zone |
| CN104929143B (en) * | 2015-04-27 | 2017-03-01 | 华东交通大学 | A kind of bottom of foundation ditch dewatering well shut-in well method |
| CN105350554A (en) * | 2015-11-24 | 2016-02-24 | 北京崇建工程有限公司 | High-water-level foundation pit dewatering construction method |
| CN107059903B (en) * | 2017-05-26 | 2019-01-29 | 南通八建集团有限公司 | Bottom plate plugging dewatering well construction method is worn in foundation pit |
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